from util import Util
class Command:
    def __init__(self,sock):
        self.sock=sock
        self.util=Util(sock)
    def mesg(self,msg): self.util.mesg(msg)
    def exec_cmd(self,command,extra=[None]):
        if extra!=[None]:
            eval(f"self.{command}(self.prefix,self.cmd,self.pm,self.line,self.admin,extra)")
        else:
            eval(f"self.{command}(self.prefix,self.cmd,self.pm,self.line,self.admin)")
    def echo(self,prefix,cmd,pm,line,admin):
        """simple echo command"""
        self.util.mesg(cmd.split(" ",1)[1])
    def help(self,prefix,cmd,pm,line,admin,extra):
        mesg=self.mesg
        prefixes=", ".join(extra[0])
        enabled_commands=extra[1]
        admin_commands=", ".join(extra[2])
        try: topic=extra[3]
        except IndexError: topic=None
        abs_topics={
            "prefixes":"available prefixes are {prefixes} or my name"
        }
        if topic==None:
            mesg(f"available topics: "+", ".join(enabled_commands+list(abs_topics.keys())))
            if admin:
                mesg(f"admin commands: {admin_commands}")
        else:
            try: mesg(f"{topic}: "+eval(f"self.{topic}.__doc__"))
            except TypeError:
                if topic in abs_topics:
                    mesg(f"{topic}: "+abs_topics[topic])
                else:
                    mesg(f"no help available for \"{topic}\"...")
            except AttributeError: mesg(f"there's no such thing as \"{topic}\"!")
            except Exception as e: mesg(str(e.__class__)+" "+str(e))